Barrel cover locking means



Jan. 3, 1950 F. MAUER BARREL COVER LOCKING MEANS Filed May l0 1947 INVENTOR. FREDERICK MAUER W,ML L+M M ATTORNEYS.

Patented Jan. 3, 1950 UNITED s'r ges PATENT oFFicE;

This invention relates to improvements: in: closuresfor receptacles; such I as, for: example; cylindrical :boxes; barrels and? the like, and it: relates particularly to'improvements "in closures: which-may be detachabiy secured:toasuch cone 5,- tainers.

An lobject of the: invention is to provide? as closure in the form .01" -a:.lidfor head which can" be' clamped securely on' the endi'of. a receptacle and. canbe-releasedireadily-to permit removal. 10.

of the closure. from the receptacle:

A further. object .of the-:inventioniis tovprovi-de a detachable-closure 'ior'rreceptacles including. aw locking" mechanism supported on". and: forminga. part of the closure inwhich the "locking mech-' anism is protected: against 2 inadvertentrrelease: Other objects of the inventioniiwill become ap parent from the following description of atypical:- form 'of closure embodying thepresentzinvention.

In accordance with: the:v present invention glc. have provided a closure for'circulacior:cylindricalai receptacles, such as barrels, tubs, boxes-,2 cane; jars and the like, in which the closure TiS'IJIOS/idd with a depending flange adapted" to" engage:

around the'end of the receptacle, this flangerb'eing:

compressible and supportinga split bandiwhich maybe compressed: to forcezthe flange'r into tight: frictional locking engagement with the: end of the'receptacle;

More particularly, the flange of: the; closure 0 member is provided: with a' plurality of? slits' which divide it: into a: pluralityof relatively movable segments. The 'split'band fitsi'aroun'd'il these segments sothatwhen the:- bandxis? cone tracteoL- the segments are: deflected; an'd 'coinpressed against the. sides "of ther'receptacle;

The means for compressing the band aconsistsz. of alever member which is supported 'onaipivot'. carried by one of the segments ofIther flange. This lever is provided with suitable (ramming 40 means cooperating with the ends of the split band so that when the leveris moved downwardly into substantiallyparallel relationship with the flange, the band is contracted to compress thesegmentsagainst the sides of the receptacle. 7

The flange prefrablyis provided with a rolled or beaded lower edge, thisbead being provided with a: slot, for receiving anoffset or laterally directed projection on the lever so that the lever is. retained in parallelism with theflangeanditis disposed largely within the-perimeter of the beadi The end of the laterally directed portion may be provided with an aperture for securing means, such as a twisted wire, to prevent the lever from being swung inadvertently into a position where- Z in the-closure is :releasedi from theareceptacler.

- For abetter'understanding rof the .present zin-s vention reference may be had to the accompanye ing drawing, inwhich l t Figure 1 is:a view in sideielevatiorriotiaiypical i form oi-Iclosure embodyingetherpresent inventi onc as applied to a receptacle .shownupartl b'brokeno away;

' Figure '2zisra view in section taken outline- 2: 4: of -Figure 1'; and:

Figure 3 is-"a .r-viewr in section-taken:o1r line 3 -3 of Figure: 1.

The zinvention :will .be :describedaiihereinaften inc connection with.a generally'.cylindri'cal receptaclee Hi which; may take thefformwofia fiber::ba1.rel?of type zwellekhown-iinitheeart. Receptacles enters; typeiare commonly' used for pack'agingtpowderw andiother T'materials'; and: therefiorepto (prevents leakage, it is; desirableto provide aihead or-cend closure forthe sb'arreli whichz'canibeisecureditight lyzto the barrel in seal-ingrelatiom.

' Therclosure-tor: head for the: barrelslembodylng-s the present inventionamaw consist of arcircul'ari member 51' having a: depending zzflanges I ii-which: is provided: witha' rclledrbead'xedgeel 3: Asa-'illus trated', the center z'portiorronitlieiclosuretis'sflatl. However; if desired; itimay be iprovidediwithf suit ablet-cormgationsztmstrengthen :itiand: tocengage against suita-bl e; shoul ders: formedflv-ithin thercon tainer;notfshown:'

ihe flange '1 l 2. :ot-themlosurezis rprovidedi with a plurality-of transversely extending-slits '0! slots it which rendert-the-efiange' fi'exibleeso tlsfai'iith'e. segments between? the; slots .:can be compressed against therside'oi the-containera it :2.

In order to form a' firmzsupport forathe-zclosura': the upper"edge'sorrlipr of "thmbarrel I0 may "be reinforced by l means soi ta channel' -il-ikebead 5' which is compressed .againstithe ilip ofiithe bar-rel; and. has :itswinner edges? I exam: 1 leclinched iinto thebar-relt Thisebeadi mayibefiprovidd witlaliae sealing gasket; not: shown ,1 atii itseouter: 'edge :fon sealinggerrgagementewitl r the innerisurfaces'of thee closure. Alternatelygthez:closurec mayrbe; pros vided with such. a sealing gasket for engagement with theouter edge .oirthezbeadei 512a Thefclosurewmay be'-securedifirmlycauditightlyi tO' ithE21ipJOfathG, container by: means iofrz'aesplit a clamping; band-;- it? which: extends; around .the flange l 2 has: its v oppcsite sinner endssZ El rand? 2.3 diseased-.0111:oppositer sides; of: as pint-12 2; Ewh'rclii is isecuredcin the flange a! zzbmrivetingi. weidingm': inlameothen-desiredvway;L The inner. ends Zltandd 2! of the split band are also provided with headed pins 23 and 24 which are welded or riveted to the ends of the bands. These rivets 23 and 24 engage in spiral cam slots 25 and 26 respectively in the base or inner end 21 of a lever 28 which is pivotally mounted on the pin 22. The inclination or curvature of the slots 25 and 26 is such that when the lever 28 is in the dotted line position shown in Figure 1, the band is expanded so that the flange segments l2 can spring outwardly and thus permit the closure to be detached from the end of the barrel I0. When the lever 28 is swung downwardly to the full line position shown in Figure 1, the ends 20 and 2i of the band are drawn closer together so that the band l9 compresses the flange l2 into the undercut portion l8 of the rim 15 of the barrel and thereby locks the closure tightly to the end of the barrel H1.

The lever 28 is provided with a downwardly or laterally directed end portion 29 which is adapted to pass through a slot 30 in the beaded rim l3, as shown in Figure 1, to prevent the lever from being sprung outwardly away from the closure if it should catch on something as the barrel is being filled or otherwise handled. The lever can be locked so that the closure cannot be released inadvertently by providing a hole 3| in the end of the lever for receiving a twisted wire 32 or other locking member.

The band I9 is not readily released from the closure when it has been attached thereto, for it cannot drop downwardly due to the presence of the beaded lower edge of the flange. Upward movement of the band [9 can also be prevented by means of suitable protuberances 33 disposed around the circumference of the flange. One protuberance 33, near the end 20 of the band [9, also prevents the end 20 of the band from being moved upwardly as the lever 28 is moved in a clockwise direction into its clamping position.

From the preceding description of a typical form of closure member embodying the present invention, it will be understood that I have provided means for securely attaching a closure member to a container, and one in which the parts lie substantially flush with and within the perimeter or circumference of the closure member so that it will not be damaged or sprung by contact with other adjacent articles. Moreover, I have provided a very simple means for retaining the closure member in locked or clamped position so that it cannot be released inadvertently. Moreover, by the use of flxed pivot for the lever and a band which has both ends movable relatively to the pivot, a more uniform clamping pressure can be obtained around the circumference of the closure member than with the devices of the type produced heretofore.

It will be understood further that closures of the type described above can be made in many difierent sizes and designs and may be used with small or large receptacles as the purpose demands. Therefore, it will be understood that the form of the invention described above is illustrative and not to be considered as limiting the scope of the following claims.

I claim:

1. A closure for a receptacle comprising a circular head member having a depending flange, slits in said flange for rendering it flexible, a split band encircling said flange, said band having adjacent ends, a lever pivotally mounted on said flange for movement in a plane substantially tangential to said flange, and camming means connecting said lever to said opposite ends of said band for compressing said band around said flange upon pivotal movement of said lever in one direction.

2. A closure for a receptacle comprising a circular head member having a depending flange, slits in said flange for rendering it flexible, a split band encircling said flange, said band having adjacent ends, a pin fixed to and extending substantially radially outwardly from said flange between said adjacent ends of said band, a lever pivotally mounted on said pin, and camming means connecting said lever to said adjacent ends of said band for compressing said band against said flange and flexing the latter into engagement with said receptacle.

3. A closure for a receptacle comprising a circular head member having a depending flange, slits in said flange for rendering it flexible, a split band encircling said flange, said band having adjacent relatively movable ends, a pin fixed to and extending outwardly from said flange between said adjacent ends, a lever pivotally mounted on said pin, substantially spiral cam slots in said lever on opposite sides of said pin, and means on the adjacent ends of said band engaging in said slots, whereby pivotal movement of said lever in opposite directions compresses and expands said band relatively to said flange.

4. A closure for a receptacle comprising a substantially circular cover member having a depending flange, a rolled edge on said flange, slits extending at least partially across said flange dividing it into a plurality of relatively movable, flexible segments, a pin fixed to and extending radially from said flange, a lever mounted for rotary movement on said pin, a split band encircling said flange and having relatively movable adjacent ends on opposite sides of said pin, and camming means connecting said adjacent ends to said lever to compress said band around said flange upon movement of said lever toward said rolled edge.

5. A closure for a receptacle comprising substantially circular cover member having a depending flange, a rolled edge on said flange, slits extending at least partially across said flange dividing it into a plurality of relatively movable, flexible segments, a pin fixed to and extending radially from said flange, a lever mounted for rotary movement on said pin, a split band encircling said flange and having adjacent, relatively movable ends on opposite sides of said pin, camming means connecting the ends of said band to said lever to expand and contract said band upon movement of said lever away from and toward said rolled edge, respectively, a slot in said rolled edge, and a projection on the outer end of said lever engageable in said slot when said band is contracted.

FREDERICK MAUER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATESPATENTS Number Name Date 308,215 Taylor Nov. 18, 1884 2,101,814 Lockhart Dec. 7, 1937 2,186,518 Buono Jan. 9, 1940 2,304,539 Carpenter Dec. 8, 1942 

